Mauritius Parakeet (Psittacula echo) - HBW 4, p. 399

Taxonomy:Palæornis echo A. and E. Newton, 1876, Mauritius. Has been treated as a race of P. krameri, or of extinct P. eques from Reunion; name echo even regarded as a junior synonym of eques, being indistinguishable from descriptions of the latter, of which no specimens survive. Monotypic.